One to Many Communication Essay

What is wi fi ?Wi-Fi is the name of a popular wireless networking technology that uses radiocommunication waves to provide wireless high-speed internet and network connections. A common misconception is that the term Wi-Fi is short for wireless fidelity, however this is not the case. Wi-Fi is simply a trademarked term meaning IEEE 802.11x. The wi fi alliance, the presidency that owns the Wi-Fi (registered trademark) term specifically defines Wi-Fi as either wireless local area network (WLAN) merchandises that are ground on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standards. Initially, Wi-Fi was used in place of only the 2.4GHz 802.11B standard, however the wi fi alliance has expanded the generic use of the Wi-Fi term to include any type of network or WLAN product based on any of the802.11 standerds, including 802.11b,802.11a, dual band ,and so on,in an attempt to stop confusion about wireless LAN interoperability.How Wi-Fi Works?Wi-Fi works with no ph ysical wired connection between sender and receiver by using radio frequency (RF) technology, a frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space. The cornerstone of any wireless network is an entranceway menstruum (AP)The primary job of an access point is to broadcast a wireless signal that computers can detect and tune into. In order to connect to an access point and join a wireless network, computers and wiles must be equipped with wireless network adaptersWi-Fi Support?Wi-Fi is supported by many applications and divecesincludingvidio gameconsoles, alkali network, major operating system, and other types of consumer electronic .any products that are tested and approved as Wi-Fi Certified (a registered trademark) by the WI FI alliance are certified as pr conductical with each other, even if they are from different ma nufacturers. For example, a user with a Wi-Fi Certified product can use any brand of acess point with any other brand of client hardware that also is also Wi-Fi Certified.Wi-Fi Alliance?The Wi-Fi Alliance is a trade association that promotes Wriless LAN technology and certifies products if they adapt to certain standards of interoperability. Not every IEEE 802.11-compliant device is submitted for certification to the Wi-Fi Alliance, sometimes because of costs associated with the certification process. The lack of the Wi-Fi logo does not necessarily imply a device is incompatible with Wi-Fi devices. The Wi-Fi Alliance owns the Wi-Fi trademark. Manufacturers may use the trademark to brand certified products that belong to a class of wireless local area network (WLAN) devices based on the IEEE 802.11 standards.Advantages Flexible if there is ad-hoc situation when additional workstation was required. Implementation cost is cheaper than wired network. Ideal for the non-reachable places such as across river or mountain or rural area. Ideal for temporary network setups.Disadvantages Lower speed compared to wired network. (of course) Less secure because hackers laptop can act as Access Point. If you connected to their laptop, theyll read all your information (username, password.. bla..bla..bla..). More complex to configure than wired network. Affected by surrounding. E.g walls (blocking), microwave oven (interference), far place (attenuation)